Percolator.



E. S. PEGK.

PERGOLATOR.

APPLICATION FILED JAN. 26, 1909.

Patented 22, 1.909 z sLBBTs-BHHIIT 2.

ERNEST s. rE'cK, or CLEVELAND, oEIo.

PERCOLATOR.

Specification of Letters Patent;

- Patented :une Q22, 190s.

Application led January 26, 1903. Seria1No. 474,242.

To altfwhom 'ttf/nay concern:

Be it known that I, ERNEST S. PEoK,a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio,'have invented a new and useful Inirovement in Percolators, of which the folowing is a specification, the principle of the invention bein herein explained, and the best inode in W ich I have contemplated applying that principle, so as to .distinguish it from other inventions.

Thcge'neral class of apparatus .to which the present' invention relates, is that dei signed for the extraction of soluble oilsand fats as from tankage or other anal'o ous material forming one of the products o garbage v reduction plants and rendering establishments, or from the various oil bearing seed.Q

, As is well understood, the solvent generally employed for the purpose of. taking up the grease in the case of tankage, is naplitha; but Whether naphtha or other solvent be used a suiiicient, quantity is passed through the material to thoroughly extract such grease, after which extraction it becomes necessary to recover the portion of the solvent that has been absorbed by the material, the quantity of the solvent being proportionately quite considi erable, and the loss, unless it is thoroughly recovered, being a large item of expense in the carrying on of the operation referred to. The object of the present invention is the i provision of a Amore efficient and labor saving apparatus forthe purpose of eflecting both such extraction and recovery steps of the general process just described, and one l that will bee'cononiical both by reason of the i thorou hness with which the naphtha is recovere and the small amount of power and labor required to operate the apparatus.

' ToL the accomplishment of these and related ends, said invention, then, consists of t the means hereinafter fully described, and particularly pointed out in thev claims.

The annexed drawings and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but seveial of the various mechanical forms in which the principle ofthe invention may bc used. In said annexed drawings Figure 1 represents a central longitudinal cross-section of a 1 percolator embodying rny several improvethereto for the purpose of recovering the niente, together with a condenser attached valves t?.

Fig'. 2, l provide a perforated plate B that ent operative position, and including certain modifications in construction; and Fig. 3 is a partial end elevation and partial transverse section of such modified form of percolator.

Referring to the figures just described, the percolator will be seen -to comprise essentially a cylindrical drum A disposed in a substantially horizontal position and rotatably supported upon roller bearings a. lTo this end it is provided with annular bearing rings a adapted to rest on suoli rollers, and with a gear (L2 at one end wherewith suitable driving nie-ans may be connected,l 'as' will be readily understood. Such drum is provided in its lateral surface with a longitudinal extending kSeries of man-holes a3, three in number as "shown,through which the mate.- rial to be treated may be introduced into the interior of the drum, and thence in turn discharged.` Such man-holes are adapt-ed to be closed by means of covers a4, except when the material is being -thus passed therethrough. Disposed longitudinally of the drums, and laterally adjacent to lsaid man-- pipe `by means of thc connecting pipes 1i',

which lattcr are controlled by suitable ln the construction shown in extends t ie entire length of the drum and preferably close along one side-of themanholcs, although this is not necessary, for such plate may be located at a greater or vlcss distance therefrom' just as well. providin(r a corresponding change he made in another part presently '.to bc def-icribed. Plate B is spaced from the inncr wall ot' the drum, so as to atl'ord a place for the liquid tocollcct, connect-ions b with lsuch space, serving as before to conduct such litpiid to the longitudinally extending pipe l Substantially diainctrically opposite the longitudinal pipe B (whether the latter lies adjacent toman-holes a3 or not) is a second 3D- l .1nthe last stage ofthe o eration. When the drum is thus disposed, t e covers closing the y longitudinally disposed pipe C` through `.wh1ch either naphtha or steam is designed to .besuplied to the interior ofthe drum as re- 1 drum, is

ulre Connection between such pipe and t e drums interior 1s had by means of trans- .versely disposed pairs of branchpipes c` 'v mg box c3, whence radiallyT extends a valvecontrolled branch c4 to the projectingend ofV said pipe() The latter is further provided -with an extension t5 to which a connection C as a hose or the like may be joined when it is desired to supplyna htha in place of steam to the drum. The ot er longitudinal ipe B is adapted to be similarly connected) with a flexible connection B2 permitting the removal of the the tank. y

excess of naphtha drained from Theoperationof the apparatus thus far -`described, may be. readily indicated. The position ofthe drum shown in Fig. 1 is that which it will normally occu y while being illedwith tankage, as also while the naphtha absorbed bythe material is being driven off man-holesmay befremoved and the drum lled', preferably from to fgl full of tankage. Such man-holes being then closed, the drum ,is rotated and left in a positiony substantially a half-turn over; thereu on its interior is flooded with naphtha eit ier through pipe C and its branch connections c, or, as is some'- times initially desirable, through' pi e B (now disposed lower-most) so that suci solvent may rise upwardly through the'material. The excess of naphtha, with the grease in solution, after percolating through the mass of holes.

between the solvent naphtha and allot the tankage is withdrawn through the draining means -shownf as associated with the man- In order to insure thorough contact material it may become desirable in connection with certain materials, during this process, to rotate the 'drum one or more times, thus thoroughly intermingling such contents and naphtha, whereupon the process. of draining o" the latter may be again continued. During rotation "of the. drum, exterior connections with the two longitudinal pipes are, -of\ course, temporarily broken. i v

*When the extraction of grease'and other valuable constituents has been thus complated, therecovery of the naphtha still rev mailling in the tankage, is e'itected'by sup- A -plying steam through the same connections which the 'naphth a had previously been admitted to the tanks interlor. The posi'- tion of the tank, however,v is again changed, so as to now dispose longitudinal pipe C and such connections on the under side, in order that the steam may have to pass through the mass ol tankage before it can escape from the drum.' Such esca e of -the steam, together with the associate naphtha vapors, is by the way of a pipe D, supported exteriorly of the drum and passing througha suitable stuffing boxd in the end thereof opposite to that at which the steam is supplied. A plate d serves as a shield for the inner end of the pipe, to prevent the entrance therein 4of the solid material being treated.v Exteriorily of the drum, such vapor discharge pipe D is connected with a condenser D (Fig. l) that comprises a main condenser-.coil cl2 in a tank cl3 containing a suitable cooling liquid. Such condenser -coil d2 is provided with a liquid Adischarge cll and with a vapor discharge d5 the latter opening below the 'liquid level-in the tank ywhereby a liquid seal is formed therefor. A secondary condensing coil (Z7 is interposed between the discharge end of the' main coil and such vapor discharge, and a loop d6 is likewise pro# vided, being made of a suiiicient height to prevent the water of the tank from rising and lowingover into coil d7. It will thus be seen that all air or other inert gases in the apparatus'will be eliminated by way of discharge d5 upon admitting steamvto the'tank; but that immediately upon steam or na htha vapor'coming in contact with the coo condenser coil, their liquefication produces a vacuum suflicient to raise the watery to a greater or less height in the outer arm of the .looV d6 with the resulting seal,.already noted ther modes of applying the principle oi' :my inventionvmay be em loyed instead of the one explained,`change heing made as re gards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be'employed. l

I therefore particularly point out and distinctly claim as my. invention 1. A pucolator comprising a rotatable, substantially horizontal drum provided with a series of longitudinally alined man-holes in its cylindrical wall for the supply and disv charge of the material to be treated; conne@ tions to the ortion of such wall substantially diametrical y opposite from said man-holes 'for introducing either solvent or steam as desired; an'd draining. means connected with such wall contiguously to said man-holes.

l2. A ercolator comprising a rotatable,

substantially horizontal drum provided with Aa series oflongitudinally alinedv man-holes 1n its cylindrical]` wall for the supplypand'dischargeof th, material .to be treated; two

pipes disposed longitudinally of saiddrum,

the one adjacent to'said man-holes, the othersubstantially diametricallynopposite thereand means for supplying either a solvent orsteani to the other thereof, said last-named pipehaving 'discharge connections to the drunis interior, said draining 4and solvent supplying ineans being separable troni the correslponding pipes, respectively.

percolator comprising a rotatable,l

substantially horizontal drinn rovided with a series of loneiti'idinally aline man-holes in its cylindrical Wall for the supply and dischargevol' the material toghe' treated; twopipes disposed longitudinally of said drinn, the one adjacent to said nien-holes, the other substantially' dianietrically opposite therefroni; Inean's for draining the interior ol' the -driiin connected with the iii-st oi said pipes;

and ineans ioisupplying either a solvent or steani to theother thereof,- said last-nained pipe being` provided with transversely ranged A discharge branches connected to the drinn at their outer ends, said draining' and solvent supplying nieans being separable from the corresponding pipes, respectively.

4. A percolator comprising a rotatable, substantially horizontal drinn provided with a series of longitudinally alined nian-holes in its cylindrica Wall for the supply and dis-- charge of the material to be treated; two pipes disposed longitudinally of said drum, -the one adj acent'to said man-holes, the other substantially diametrically opposite therefrom; a perforated draiiiinrlr plate within said drum and alongsideA sai i'nan-holes, the space between said late and the druni wall being connected wit the first-'ot' said pipes; means for supplying either a solvent or stea in tothe other of said pipes, said last-named pipe beingl provided with longitudinally ranged Ts; and transversely disposed discharge branches connected at their inner ends with said Ts and at their outer ends With the drum Wall.

5. A ei'colator comprising a rotatable, substantially horizontal drinn provided with a seiies of longitudinally alined man-holes in its cylindrical wall for the supply and discharge of the material to be treated; connections to the portion of such Wall substantially dianietrically opposite iroin said inanholes for introducing either solvent or steain as desired; means for draining liquid l'roin said driiin connected with such Vall contigiioiisly'f to said nien-holes; and a pipe centrally connected with one endoi said drinn for lwitlidi'aiving vapors therefrom.

t3. A pereolalor comprising a rotatable,

Vposite 'from said. man-holes' for introducing yin its oylin'dricy wall tor the supply and dicharge ofthe material to be treated; circumierentially spaced connections to the portion of such Wall substantially i'lianietrically opeither solvent or steam as desired; means for draining liquid from said drinn connected with such wall contiguously to said manholes; and a pipe centrally connected with one end ol said drinn and bent upwardly inside the saine for withdrawing vapors therefrom.

7. A percolator comprising a rotatable, substantially horizontal drinn provided with a series oi' longitudinally alined man-holes in its cylindrical Wall for the supply and discharge of the material to be treated; two pipes disposed longitudinally. of said drum, the one adjacent to saidinan-holes, the ot ei' substantially diametrically opposite threlroni; means for draining the interior of the drum connected with the first of said pipes; means for suliplying either a. solvent or stean'i to the other thereof, said last-named pipe having discharge connections to the driinis interior; and a pipe centrally connected with one end of said drinn and bent upwardly inside the sanie for withdrawing vapors therefrom.

S, A ercolator comprising a rotatable, substantially horizontal drinn provided with a series of longitudinally alined man-holes in its cylindrical wall for the supply and discharge of the material to bc treated; tivo pipes disposed longitudinally of said druin, the one adjacent to said man-holes, the other substantially diainetiically oppositf` therefrom; means 'lor draining the interior of the drinn connected with the first of said pipes; means for supplying either a solvent or steani to the other thereof, saidlast-nanied pipe boing provided withtransversely ranged connections connected to the driiinl at their outer ends, said draining andI solvent supplying nieans being separable from the correspond- 105 ingpipes, respectively; and a pipe centrally connectedivilh one end ol lsaid drinn and bent upwardly inside the saine for withdrawioo ing` vapors thereiroin.

Aries-iai by, 

